Seems like a good idea @Rakesh36. I only have three listings and don’t typically forget to review someone. There are plenty of reminders in the two-week period, plus visual reminders like app-inbox notifications. But it will probably be helpful for large-scale hosts. And it is a signal that Airbnb is eager to have more guests rated and reviewed.
Let me drill down a bit into this process. When I review someone, I always go back to the message thread to see what the tone and communication with this guest was like from the beginning. I assume large-scale hosts need this kind of reminder as much as I do if not more. As noted, there are already multiple ways hosts are reminded and can be reminded of pending reviews, including an inbox filter. But there is nothing that makes it easier to remind a host what kind of a guest they had, which is very important when writing a review. If I could see the message thread above or next to the review page, that would be a huge help.